The effort is intended to help the G.O.P. win five more U.S. House seats in the midterm elections. Other states, red and blue, are likely to redraw their own maps.

Democrats said Republicans in the Texas House crossed a line by detaining them en masse and then assigning state troopers to trail them everywhere they go.

Texas Democrats end walkout as GOP-controlled legislature prepares to vote on redistricting maps that could flip five congressional seats to Republicans

Other Democratic lawmakers have joined a colleague in staying at the Texas Capitol rather than accept around-the-clock police escorts meant to prevent them from blocking a vote on a Republican plan for redrawing congressional districts.

Democratic state Representative Nicole Collier hunkered down for a second night in the Texas Capitol building rather than accept a mandatory police escort in a redistricting battle as President Donald Trump seeks to keep Republican control of Congress.

Several Texas state House Democrats plan to rip up the written agreements that allowed them to leave the chamber with a police escort on Monday and return to the House floor Tuesday night, the caucus announced.

An elections expert said on Sunday that the Texas Republican Party made a "critical" admission about their redistricting efforts, which could cause their efforts to backfire. For the last month, the Texas GOP has tried to pass a new election map that would eliminate five Democrat-controlled seats.